Prambodo, Mohammad Satrio (2020) Review Proses Ekstraksi Nikel Menggunakan Metode Leaching Dengan Media Larutan Asam Sulfat. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Produksi nikel dunia terus bertambah 10 kali lebih banyak dibandingkan tahun 1950, membuat cadangan nikel di alam terus mengalami penurunan. Proses leaching dapat mengekstraksi kembali logam, dari logam yang tidak terpakai menjadi logam dengan kemurnian yang baik sehingga bisa digunakan kembali menjadi bahan baku produksi. Maka dari itu perlu adanya Review bersifat literature Review tentang pengaruh variasi proses yang mempengaruhi leaching menggunakan media asam sulfat seperti temperatur, ukuran partikel, konsentrasi asam dan kecepatan pengadukan terhadap hasil Yield Ni dan analisa pengaruh dari masing masing variasi. Pada penelitian yang dilakukan sampel diuji menggunakan pengujian XRD, dan XRF untuk mengetahui komposisi dari sampel. Kemudian dilakukan proses leaching selama beberapa jam. Sampel larutan hasil leaching diambil dan diuji menggunakan pengujian ICP-OES untuk mengetahui hasil ekstraksi nikel yang didapatkan. Hasil Review menunjukkan bahwa pada penggunaan temperatur tinggi akan meningkatkan hasil ekstraksi nikel, didapatkan hasil yield Ni terbaik sebesar 99%, pada variasi ukuran partikel didapatkan penurunan ukuran partikel dapat menaikkan ekstraksi Ni dengan hasil terbaik sebesar 100% , untuk pengaruh konsentrasi asam diketahui kenaikan konsentrasi asam akan meningkatkan ekstraksi nikel dengan hasil terbaik 97%, dan untuk pengaruh kecepatan pengadukan didapatkan kenaikan kecepatan akan meningkatkan ekstraksi nikel dengan hasil terbaik sebesar 94%
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World nickel production continues to increase 10 times more than in 1950, making nickel reserves in nature continue to decline. The leaching process can re-extract metals, from unused metals into metals with good purity so that they can be reused into production raw materials. Therefore, it is necessary to have a literature review. A review on the effect of process variations that affect leaching using sulfuric acid media such as temperature, particle size, acid concentration and stirring speed on the yield of Ni yield and analysis of the effects of each variation. In the research, the sample was tested using XRD and XRF testing to determine the composition of the sample. Then the leaching process is carried out for several hours. The sample of the leaching solution was taken and tested using the ICP-OES test to determine the nickel extraction results obtained. The results of the review show that the use of high temperatures will increase the yield of nickel extraction, the best Ni yield results are 99%, in the variation of particle size it is found that a decrease in particle size can increase Ni extraction with the best results by 100%, for the effect of acid concentration it is known that an increase in acid concentration will increase nickel extraction with the best yield of 97%, and for the effect of the stirring speed, the increase in speed will increase nickel extraction with the best yield of 94%
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Keywords: Nickel, Leaching, Sulfuric Acid, Temperature, Particle Size, Concentration, Stirring |
| Subjects: | Q Science Q Science > QD Chemistry Q Science > QD Chemistry > QD63 Extraction T Technology > TN Mining engineering. Metallurgy T Technology > TN Mining engineering. Metallurgy > TN688 Hydrometallurgy T Technology > TN Mining engineering. Metallurgy > TN799.N6 Nickel--Metallurgy T Technology > TP Chemical technology T Technology > TP Chemical technology > TP156 Crystallization. Extraction (Chemistry). Fermentation. Distillation. Emulsions. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Moh. Satrio Prambodo |
| Date Deposited: | 12 Aug 2020 06:15 |
| Last Modified: | 30 May 2023 06:53 |
| URI: | http://repository.its.ac.id/id/eprint/77682 |
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